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# Finding Exact Trigonometric Values Using Double Angle Identities

## Sine, cosine, and tangent of angles other than multiples of 30, 45, and 60 degrees.

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Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
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## Finding Exact Trig Values using Double and Half Angle Formulas

by CK-12 //at grade
This lesson covers finding the exact trig values using double and half angle formulas.
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## Finding Exact Values using Double and Half Angle Formulas

by Chris Campbell //at grade
This lesson covers finding the exact trig values using double and half angle formulas.
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## Trig Values using Double and Half Angle Formulas

by CK-12 //at grade
Finding Exact Trigonometric Values Using Double Angle Identities Interactive
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